Question

I try to use fread to read a text file

My code is only 2 lines

fid = fopen('1.txt', 'r');
c = fread(fid,'double', skipvalue); 

I have tested different format like double, float32, float64 and different skipvalue from 0 to 8, but none of the combination work.

The data is recorded by a c program code
fprintf(file,”%f \n”,sample[i]);

sample data (each row has one data only )

-0.992224 
0.932078 
-0.474954 
-0.659479 
-0.994677 
-0.380766 
-0.643983 
0.425023 

Answer 1

Try the textscan function or fscanf.

fread is the counterpart to fwrite, not fprintf.

fscanf is the counterpart to fprintf.

If you absolutely must use fread, you’d read a string (character array) and then use sscanf to extract the numeric data from it.